Just about any packs rated 30C or better are fine. There really isn't any standardized test to truly measure continuous current. They're mostly theoretical "marketing" numbers. For example, if a 5000 mAh battery rated at 50C really had that 50C load on it, most likely the wires, connector, and / or solder job would melt.
After a full charge, run your TC for 6 minutes. Re-charge the battery, making note of the amount of mAh it takes to fully charge the pack. Multiply by 10, and that's your average current draw. A 17.5 foam tire TC was using 2200 - 2500 mAh in 6 minutes, for an average current draw of 22-25 Amps, or less than 5C. Granted, peak draw was a lot higher (around 70A, according to a Novak Sentry data logger), but even that is only 14C. Most packs are rated at 2x their C rating for burst current (like around a 10 second "pull"). Again, not even close.
*** The Gate - Celebrating 7 years at the same location ***
The difference between genius and stupidity is that genius has its limits. - Albert Einstein
Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car